Electronic cigarette



FIG. 1 is a top perspective view of an electronic cigarette showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the electronic cigarette which form no part of the claimed design. 

CLAIM The ornamental design for an electronic cigarette, as shown and described. 